340 in Roman Numerals

CCCXL

340 in Roman numerals is CCCXL, and is spelled three hundred forty.

How 340 breaks down

To write 340 in Roman numerals, combine CCC (300) and XL (40) to get CCCXL.

ValueRoman
300CCC
40XL
340CCCXL

You can open 340 in the converter or browse the full Roman numerals chart.